Recent content by semiroundel

Hi all, I leave a couple of M365 scooters abroad for holiday use. My brother in law who lives there allegedly scoots about with them occasionally and recharges etc to keep them cycled, but each year I go visit him, one of the packs has dead cells and needs replacing. I'm familiar with lithium...

Hi all, I have access to A123 cells at a decent price, I have an Arduino-based welder for the tags so could easily make up the packs (I've used A123 cells for a while in RC flight and my charger (Revolectrix) actually charges through the balance leads instead of through power cables, thus...

Many thanks fechter. I am now a broad on vacation, but the minute I get back I'll be sure and post my findings. Afterb all, there may be others out there with a similar problem.

Thanks for your help E-HP. My memory (which is not what it was when I was younger) was that it went round the block but VERY quickly slowed to a stop on the next outing. That is to say that it moved a little, a few yards, but slowly,then it moved no more. It hasn't fallen over, it was well...

When you said "the motor would hardly turn on assist or throttle" it seems to indicate that at least some power is flowing from the controller to the motor. I may have been imagining that. On checking hall sensor wires, would I need to separate hub? I'm guessing yes.

Essentially the bike is like new, once round the block, then nothing. No throttle or PAS.

Both the symbol and error code say: Motor failure So I'm guessing it's a failure in the motor. Having quite some experience with brushless motors for RC electric flight, I'm puzzled as to what it could be, espaecially as it only did about a mile before stopping....

Sorry guys, for not having put on my glasses-if I had done so, I would've seen the motor fault symbol that I can clearly see now. Where do I go from here? After a bit of googling I'm wondering if it could be one of the brake inhibitors, should they be open circuit or closed. And if not them...

well i checked the fets using the excellent tutorials in the link-thanks for that. No problems there. I didn't see there how to check the motor windings (did I miss that?) The code in the pic of the display indicates motor fault but the manual is supposed to have a symbol for motor fault (if the...

well i checked the fets using the excellent tutorials in the link-thanks for that. No problems there. I didn't see there how to check the motor windings (did I miss that?) The code in the pic of the display indicates motor fault but the manual is supposed to have a symbol for motor fault (if the...

Thanks amberwolf. I have revisited the bike (it's in my garage away from home, taken lots of pics, and will update this post and the other posts with the relevant info). I liked the fechter method with the spreadsheet for its thouroughness, but I fully see how it's a bit overkill and this other...

Hi there, I was pointed in the direction ( I think it was on here) that someone had made up an Excel spreadsheet to test all the configurations of controller to hall sensors and phase motor wires, but for the life of me I can't find it. Perhaps someone could point me in the right direction? TIA

After doing a bit of digging around, it looks like this brainpower unit: https://www.banggood.com/24V36V48V60V-250W350W-LCD-Brushless-Motor-Controller-Battery-Speed-For-MTB-E-Bike-Scooter-p-1399444.html?rmmds=buy&ID=520454516800&cur_warehouse=CN Has the white wire in question, and it would...

Thanks Amberwolf, the display does have a speedometer, so I'm guessing that's what it is, I'll still check though. 1. Is it possible that it's a speed sensor and still a DD motor? 2. If it's is indeed a geared motor, does that affect the type of controller I replace it with, if I replace it...

Hi all, newbie here, so I may make mistakes. Sorry. I have read stickys, but question not answered. A year ago I bought an Alfawise X1 bike from Gearb*st. It ran once round the block then the motor would hardly turn on assist or throttle. I checked the battery in and out of bike and it's...